Prevention of competitive suppression in microbial plating experiments.
D001431:Bacteriological Techniques; D003470:Culture Media; D004926:Escherichia coli / Q000254:growth & development; D066298:In Vitro Techniques; D007785:Lactose / Q000378:metabolism; D009154:Mutation; D014364:Tryptophan / Q000378:metabolism*
D003470:Culture Media; D014364:Tryptophan; D007785:Lactose